Faculty Opinions recommendation of Control of stomatal distribution on the Arabidopsis leaf surface.

SOOTY MOULD DISEASES OF SOME TREES FROM AURANGABAD DISTRICT, MAHARASHTRA (INDIA)

FLORA AND FAUNA ◽

10.33451/florafauna.v23i2pp351-354 ◽

2017 ◽

Vol 23 (2) ◽

Author(s):

NAVALSINGH J. TODAWAT

Keyword(s):

Surface Area ◽

Fungal Pathogens ◽

Leaf Surface ◽

Severity Of Disease ◽

Sooty Mould ◽

Leaf Surface Area

Sooty mould diseases of Tress from Aurangabad district were surveyed. During the survey of tress, 5 species were found infected by fungal pathogens causing sooty mould diseases. Disease is easily identifiable by the presence of a black, velvety growth covering the leaf surface area. The fungus produces mycelium which is superficial and dark grows on the flowers, leaf, stem and sometime on fruits also. The severity of disease depends on the honeydew secretions by insects. The diseases were found to be caused by 5 species of fungi viz. Capnodium anonae, C. ramosum, Capnodium sp., Meliola bangalorensis and Meliola ranganthii.

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Leaf surface and endophytic fungi associated with onion leaves and their antagonistic activity against Alternaria porri.

Czech Mycology ◽

10.33585/cmy.67101 ◽

2015 ◽

Vol 67 (1) ◽

pp. 1-22 ◽

Cited By ~ 9

Author(s):

Sobhy I. I. Abdel-Hafez ◽

Kamal A. M. Abo-Elyousr ◽

Ismail R. Abdel-Rahim

Keyword(s):

Endophytic Fungi ◽

Leaf Surface ◽

Antagonistic Activity ◽

Alternaria Porri

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INFLUENCE OF GROWTH REGULATORS AND LED IRRADIATORS ON PINE STRAWBERRY ADAPTATION

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2019/6/12-15 ◽

1970 ◽

pp. 12-15

Author(s):

M. G. Markova ◽

E. N. Somova

Keyword(s):

Surface Area ◽

Growth Regulators ◽

Leaf Surface ◽

Combined Treatment ◽

Fragaria X Ananassa ◽

Leaf Surface Area ◽

External Conditions ◽

Light Effects ◽

Control Version

Work on going through the adaptation stage of rooted micro-stalks comes down to searching for new growth regulators and studying the influence of external conditions, which include, among other things, light effects. The data of 2018-2019 on the effect of growth regulators Siliplant, EcoFus and experimental LED phytoradiators on the adaptation of rooted micro-stalks of garden strawberries (Fragaria x ananassa duch) in vivo are presented. The object of research is rooted micro-stalks of garden strawberries of the Korona variety. It was revealed that, at the adaptation stage of rooted micro-stalks of strawberries, the most effective was the treatment of plants by spraying with Siliplant at a concentration of 1.0 ml/l and the combined treatment with Siliplant and EcoFus at concentrations of 0.5 ml/l: regardless of lighting, the survival rate averaged 99.4 - 99.7%, the leaf surface area increased significantly from 291.85 mm2 to 334.4 mm2. The number of normally developed leaves of strawberry microplants increased significantly after treatment with all preparations from 3.5 to 6.0, 5.8 and 6.5 pcs/plant, and a significant increase in the height of strawberry rosettes was facilitated by treatment with Siliplant and Siliplant together with EcoFus. Regardless of growth regulators, the most effective was the experimental LED phyto-irradiator with a changing spectrum, which contributed to an increase in leaf surface area, height of rosettes and the number of normally developed leaves in strawberry microplants. When illuminated with a flashing phytoradiator, these indicators are lower than in the control version, but not significantly. By the end of the rooting stage, all microplants of garden strawberries corresponded to GOST R 54051-2010.

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FEATURES OF THE PRODUCTION PROCESS OF ANCIENT AND MODERN VARIETIES OF WINTER RYE

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2019/6/15-19 ◽

1970 ◽

pp. 15-19

Author(s):

A. A. Torop ◽

V. V. Chaykin ◽

E. A. Torop ◽

I. S. Brailova ◽

S. A. Kuzmenko

Keyword(s):

Production Process ◽

Dry Matter ◽

Leaf Surface ◽

Unit Area ◽

Biomass Accumulation ◽

Vegetation Period ◽

Winter Rye ◽

Total Chlorophyll ◽

Potential Productivity ◽

Productivity Potential

We compared peculiarities of the production process of the older and modern(created 80 years after) sorts of winter rye. It is determined that the specific coenotic productivity of a modern sort is 60.6% higher.This increase is due to higher number of productive sprouts per unit area and higher sprout weight. The coenosis of modern sorts is highly resistant to lodging. The modern sort has a 33.5% higher leaf surface index and a 17.7% higher share of the leaves in the upper tier, differing in their erectile orientation in space. As for the content of total chlorophyll in the dry matter of leaves and vagina, the modern sort is inferior to the older by 30.2%during theearing period, and by 17.5%during the milky-wax ripeness period.As for the content of total chlorophyll in the sowing area, the compared sorts were practically the same, but the ratio between chlorophyll a and c was noticeably different. As for the chlorophyll content in stems, in dry matter and in the area of sowing, the modern sort is inferior by1.5 times and more to the older in both observation terms. The sorts differed in the biomass accumulation and its distribution between the parts during the vegetation period. To establish the ear productivity, the older sort used only the current photosynthesis products.In conditions of an unfavorable growth year, the modern sort used previously accumulated by leaves and re-utilized assimilates. The actual and potential productivity of an ear in a modern sort is higher by 77.4 and 68.0%, respectively, but the degree of its vegetative mass supply is lower by 48.6%.Only due to the higher, by 77.4%, utilization of the mass of the sprout, the modern sort binds a greater number of grains in the ear with a higherseparate mass.Since the sharp increase in the ear productivity potential was not accompanied by the same growth of the sprout vegetative mass, the modern sort, in unfavorable conditions for growth, has tensions in the relation system between the sprout vegetative mass and pouring grain. This may be the reason of the unstable achievedyield level.

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TUNGAU PADA DAUN MANGGA (Mangifera Indica)

Jurnal Natural ◽

10.30862/jn.v13i3.722 ◽

2014 ◽

Vol 13 (3) ◽

Author(s):

Rawati Panjaitan

Keyword(s):

Life Cycle ◽

Direct Observation ◽

Host Plants ◽

Body Shape ◽

Leaf Surface ◽

Mangifera Indica ◽

Posterior Part ◽

Mango Leaves

Mites have hostplant specifications or host plants. Mites can be destructive and deadly of which is the host plants a mango crop. Mites on mango crops will cause the leaves yellow and fall off prematurely. This is will lead to the disruption of the productivity of mango. It is necessary for research to identify the mites that infect the mango crop. The method is carried out by direct observation. Mites were taken from the surface of mango leaves later in preservation with several levels of concentration of alcohol, and polyvinyl laktofenol. Then, observed under a microscope and documented for identification purposes. Mites on the leaf surface of manalagi mango (Mangifera indica) found two species, it is Oligonychus sp. and Oligonychus ilicis (Family: Tetranychidae, Superfamily: Tetranychoidea). Oligonychus sp. hallmark is rounded body shape like a spider, with a body is transparent and there are two long seta on posterior part. While Oligonychus ilicis has a characteristic elongated rounded body shape, red, and there is a short posterior seta. Oligonychus sp. and Oligonychus ilicis live as parasites on the surface of mango leaves that can lead to wrinkled leaves, yellow and to fall. Oligonychus life cycle starts from the eggs develop into Nympha and then adult.

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Gymnomitrion fissum (Gymnomitriaceae, Marchantiophyta) — a new species with fissured leaf surface from China

Novosti sistematiki nizshikh rastenii ◽

10.31111/nsnr/2017.51.274 ◽

2017 ◽

Vol 51 ◽

pp. 274-280

Author(s):

A. D. Potemkin ◽

Yu. S. Mamontov ◽

N. S. Gamova

Keyword(s):

New Species ◽

Cross Sections ◽

Cell Walls ◽

Leaf Surface ◽

Outer Cell ◽

Sem Images ◽

Cell Lumen ◽

A New Species ◽

Surface Comparison

Study of selected specimens of Gymnomitrion collected by D. G. Long in Yunnan, China, revealed a new species, G. fissum Mamontov et Potemkin, sp. nov., with a fissured leaf surface. Comparison of SEM images of the leaf surface and leaf cross sections shows that the leaf surface of G. fissum is different from that of other known species with a superficially similar leaf surface, i. e. Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula. It has fissures around the cell lumen rather than grids and perforations. Outer cell walls of Gymnomitrion fissum are much thicker than in Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula, and their outer layers tend to be partly or completely caducous. G. fissum is related to the group of species assigned to the former genus Apomarsupella.

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Microstructure of Glandular Trichomes on Leaf Surface of Sesame and Changes of Trichome Secretions under Drought Condition

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2016.00278 ◽

2016 ◽

Vol 42 (2) ◽

pp. 278 ◽

Cited By ~ 2

Author(s):

Shi SU ◽

Rui-Hang LI ◽

Dan-Ying LANG ◽

Ke ZHANG ◽

Xiao-Hu HAO ◽

...

Keyword(s):

Leaf Surface ◽

Glandular Trichomes ◽

Drought Condition

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Evaluation of Image-Based Phenotyping Methods for Measuring Water Yam (Dioscorea alata L.) Growth and Nitrogen Nutritional Status under Greenhouse and Field Conditions

Agronomy ◽

10.3390/agronomy11020249 ◽

2021 ◽

Vol 11 (2) ◽

pp. 249

Author(s):

Emmanuel Frossard ◽

Frank Liebisch ◽

Valérie Kouamé Hgaza ◽

Delwendé Innocent Kiba ◽

Norbert Kirchgessner ◽

...

Keyword(s):

Management Practices ◽

Leaf Surface ◽

Plant Traits ◽

Soil Surface ◽

Shoot Biomass ◽

N Content ◽

Total Leaf ◽

Image Pixels ◽

Leaf N Content ◽

Yield Formation

New management practices must be developed to improve yam productivity. By allowing non-destructive analyses of important plant traits, image-based phenotyping techniques could help developing such practices. Our objective was to determine the potential of image-based phenotyping methods to assess traits relevant for tuber yield formation in yam grown in the glasshouse and in the field. We took plant and leaf pictures with consumer cameras. We used the numbers of image pixels to derive the shoot biomass and the total leaf surface and calculated the ‘triangular greenness index’ (TGI) which is an indicator of the leaf chlorophyll content. Under glasshouse conditions, the number of pixels obtained from nadir view (view from the top) was positively correlated to shoot biomass, and total leaf surface, while the TGI was negatively correlated to the SPAD values and nitrogen (N) content of diagnostic leaves. Pictures taken from nadir view in the field showed an increase in soil surface cover and a decrease in TGI with time. TGI was negatively correlated to SPAD values measured on diagnostic leaves but was not correlated to leaf N content. In conclusion, these phenotyping techniques deliver relevant results but need to be further developed and validated for application in yam.

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